Perhaps you should try some spelling variations:
nuoc gac » nuoc giai, nuoc giao, nuoc sach
cau thuc » cau truc, cuu thuc, can thuc
van hanh » van thanh, ban hanh, van ban
van anh » van thanh, tuan anh, van minh
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
gac ky » cac ky, sac ky, bac ky
de cuu » de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc gac ky nang xa hoi. ((hieu ve) OR (hieu va)) cau thuc ((van hanh) or (van anh)) de cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc gac ky nang xa hoi. ((hieu ve) OR (hieu va)) cau thuc ((van hanh) OR (van anh)) de cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc gac ky nang xa hoi. ((hieu ve) OR (hieu va)) cau thuc ((van hanh) or (van anh)) de cuu tre".
• Adding a wildcard symbol may retrieve word variants: nuoc gac ky nang xa hoi. ((hieu ve) OR (hieu va)) cau thuc ((van hanh) or (van anh)) de cuu tre*.